![]() Overall, currently, gyrfalcons are classified as Least Concern (LC) on the IUCN Red List, and their numbers today are stable. The peregrine is the fastest bird on record reaching horizontal cruising speeds of 65-90 kph ( 40-55 mph) and not exceeding speeds of 105-110 kph (65-68 mph). According to the All About Birds resource, the total breeding population size of the species is 70,000 individuals. The European population is estimated at 1,100-1,900 pairs, which equates to 2,200-3,900 mature individuals. There is a fear that gyrs will become extinct in their former range within the next ten to fifteen years.Īccording to the IUCN Red List, the total gyrfalcon population size is around 20,000-49,999 mature individuals. The phrase high-speed chase typically conjures up images of cops and robbers racing in hot pursuit. Although it is specially adapted for high-Arctic life, and larger than the peregrine, the gyrfalcon is less aggressive and more conflict-averse, and so is unable to compete with peregrines, which regularly attack and overwhelm the gyrs. ![]() J B Macaulay Library Ontario View Full Species Account Similar Species Prairie Falcon Adult Prairie Falcons are more brown than the dark gray Peregrine Falcon. In the early 2000s, it was observed that as climate change began to temper the Arctic summers, peregrine falcons were expanding their range north, and competing with gyrfalcons. Gyrfalcons are much larger and bulkier than Peregrine Falcons with a longer tail and broader more rounded wings. The most significant current threat to these birds is climate change. LONG ADMIRED FORits variable plumage rang- ing from nearly white to dusky gray and for its prowess as a hunter of grouse, the Gyrfalcon (Falco rusticolus) is the northern-most diurnal raptor with a circumpolar breeding distribution restricted to subarctic and arctic zones from about 55N to 82N.
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